Gard for incandescent electric lamps.



W'. H. GREENWOOD. GUARD FOR INGANDESGENT ELECTRIC LAMPS.

' APPLICATION FILED NOV. 7. 1907.

906,41 1. Patented Dec! 8, 1908.

UNITED snares PAEFENT OFFICE.

WILLIAM H. GREENWOOD, OF EVERETT, h'iASSACH'USETTS.

GUARD FOR INCANDESCENT ELECTRIC LAlVIPS.

Specification of Letters Patent.

' Patented Dec. 8, 1908.

Application filed Nov/ember 7, 1907. Serial No. 401,519.

To all whom it may concern:

Be it known thatI, VVILLIAM H. GitEEN- woon, a citizen of. the UritedStates ofv features of construction and arrangement of parts which willbe readily understood by.

reference to the description of the drawings and tofthe claimshereinafter given.

Of the drawings; Figure 1 represents a lan view of a protector embodyingthe features of the present invention. Fig. 2 represents an elevation ofthe same applied to a socket of an incandescent electric lamp. Fig. 3represents avertical section of the protector on line 3-3 on 1 with thedividedtop open. Fig. 4 represents a horizontal section on line 4-4 onFig. 2. Fi n 5 represents a sectional detail of the latdli for securingtogether the divided top, on line 55, Fig. 1, and Fig. 6 represents asectional detail of the same on line 6-6 on Fig. 1.

Similar characters designate like parts throughout the several figuresof the draw- 1H s.

n the drawings, 10 represents a suitable openwork Wire cage consistingof rings 11, 12, 13, and 14 which are connected together by the bentvertical wires 15 extending from the rings 11 to the ring 14. To thering 11 are hinged at\16 and 17 the two parts 18 and 19 of a dividedtop, each part 18 and 19 consisting of a semi-annular plate having adownwardly extending flange 20 which is adapted tosurround when inclosed posi tion the ring 11. At 21 is pivoted to each of the parts 18and 19 a latch 22 provided with a thumb piece 23 by which'the latch maybe moved about said pivot 21. This latch has a projecting ton ue 24adapted to engage with an upturned lip 25 on the opposing part 18 or 19of the divided top, all as clearly shown in the drawings. 1

It will be noted by an inspection of the drawings that the preferredform is to have one latch upon the part 19 engaging with a hp 25 uponthe part 18 while the other latch on-the oppositeside 'ofthe axis of theprotector is pivoted to the part 18 and engages with a lip on thepart19. It is obvious, however, that both of the latches might bepivoted to the same part of the divided top and engage with lips uponthe co-acting part. Each of' the members Band 19 is provided withanupwardly projecting flange 26 which is adapted to grip vth'esocket'27 ofan incandescent electric lanip when the members 18 and 19 are closed andlocked by means of the latch 22, these members rigidly securingt-he'protectorinposition. Each of the latches "22 is provided with adownwardly and inward-ly turned lip 28which passes beneath the ring 11and supports the portion of the ring intermediate the hinges 16 and 17'.To the ring 13 is secured the cradle 29 which is made of spring wire andhas a part 30 which engages the bulb 31 of an incandescent electriclamp, thereby tending to center the bulb in the protector 10 andpreventing the bulb from coming in contact with the guard protector 10when the latter is subected to a blow.

By such a construction as is herein shown and described a bulb to anincandescent electric lamp may be securely protected from znyoinjury andreduce the breakage of such.

s in a factory or other similar place to a minimum.

It is obvious from an ins ection of the drawings that the cage itself,being made integral, of wire, all connected together to the cage itself,is of great rigidity and at the same time having the top iece made oftwo members 18 and 19 hinge to the top of the cage the lamp is morereadily inserted in the guard and the guard itself may be more firmlysecured to the socket of the lamp than by methods heretofore in use.

It is believed that the many advantages of a protector of such aconstruction as is herein shown and described and the operation of thesame will be fully apparent without any further description. I

Having thus described my invention, I claim:

1. A lamp protector consisting of a Wirework cage terminating at the topin a continuous ring; a divided cover each part of which is pivoted tothe top of said cage consisting of two semi-annu ar plates eachof which.is provided with a semi-annular wall adapts-5i. to encompass one-half ofthe lamp socket; means for securing said semiarmular plates'to saidcage.

2. A lamp i160l301 consisting of a wirewor'e cage terminating at the topin a contsnuous ring; a divided cover to the top thereof consisting oftwo semi-annular plates each of which is provided with a semi-annnlarwall adapted to encompass one-half of the lamp socket; and a hingemidway of the ends of each semi-annular plate, for securing it to saidcage, I

3. A lamp protector consisting of a wirework cage terminating at th-svtop in a continuous ring; a 'ided cover to the top thereof consisting oftwo semi-annular plates each of which is provided with a semiannularwall adapted to enc'ompass one-half of the lamp socket; hinges forsecuring said semiannular plates to said cage; and movable means on eachsemi-annular plate adapted to engage a member on the other plate to locksaid plates tog ether. I

4. A lamp protector consisting of a wirework cage terminating at the topin acontinnous ring; a divided cover to the top thereof PIOVldGCl withan opening therethrough the walls of which are adapted to encompass thelamp socket; hinges for securing said divided top to said cage; andmeans forlocking together the two parts of said top and said top to saidcage.

5. A lamp protector consisting of a wire work cage terminating at thetop in a continuousring; a divided cover to the top thereof providedwith an opening therethrough the walls of which are adapted to encompassthe Zamp socket; hinges for secur mg said semi-annular plates to saidcage;

and a pivoted latch on one of said plates j adapti to engage aprojecting member on the other plate for locking together the two partsof said top.

6. A lam J rotector consistiiw of a wire D work cage terminating at thetop in a continuous ring; a divided cover to the top thereof providedwith an opening therethrough the walls of which are adapted to encompassthe lampsocket;hinges for secure ing said divided top to said cage; andpivoted latches for locking together the two parts of said top and saidtop to saidcage.

7. A lamp protector consisting of a wirework cage terminating at thetopin a con- .tmuous ring; a

divided cover to the top thereof provided with an opening therethroughthe walls of which are adapted to encompass the lamp socket; dependingspring members within said cage adapted to em.-

brace said lamp and center it in said cage; hinges for securing saiddivided top to said cage; and means for locking together the two partsof said top and said top to said cage. i

8. A lamp protector consisting of a wirework cage; a divided cover tothe top thereof provided with an opening therethrough Walls of which areadapted to encompass the lamp socket; a projection on one 0% said and apivoted latch on the cover plates; other plate provided with a memberadapted to en age said projecting member to lock the two 8 ates togetherand also provided with a lip a apted to normally' look said cage, tosaid divided cover.

Signed by me at Boston, Mass, this 1st day of April, 1907. 1 WILLIAM H.GREENWOOD.

Witnesses:

WALTER E. Loie'iiasn, EDNA, C. Crinvnmrm.

